Home / 421,857.24-582,155.20-230,866.80

Finding the Fourth Proportional to 421,857.24, 582,155.20 and 230,866.80

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Solution

The fourth proportional to 421,857.24, 582,155.20 and 230,866.80 is: 318,591.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,857.24 : 582,155.20 = 230,866.80 : x
  2. Step 2: Convert to fraction form
    421,857.24/582,155.20 = 230,866.80/x
  3. Step 3: Cross multiply
    421,857.24x = 582,155.20 × 230,866.80
  4. Step 4: Simplify right side
    421,857.24x = 134,400,308,127.36
  5. Step 5: Solve for x
    x = 134,400,308,127.36/421,857.24
  6. Step 6: Final answer
    x = 318,591.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.